computer security threats notes of Osmania University

AMSSOI-Andhra Mahila Sabha School of Informatics

AMSSOI-Andhra Mahila Sabha School of Informatics

Osmania University
Hyderabad, Andhra Pradesh, India

computer security threats notes of Osmania University

By Navaditha Mogili

computer security
Security of any kind of information like personal information or even the security of a computer is very important in the present world. With computers being most used and most trusted the security of a computer is one of the major concerns of its users.

Computer Security is the branch of technology known as information security. It is mainly applied to computers and networks. As the name says it is about the protection of information, property, corruption etc while keeping it accessible for its intended users.

A hardware device allows the user to login and logout and set access privileges. The hardware protects the operating system image and file access privileges from being tampered. Illegal access can be detected by a mal program or user can be detected by the current state of the user by the harddisk or DVD controllers.

In computer systems Access control lists (ACL’s) and capabilities are the two fundamental ways of enforcing privilege separation. The problems of insecure semantics and one at a time access to an object of ACL can be solved by using capabilities. While capabilities are being used by research operating systems, ACL’s are being used by commercial operating systems.

Applications:-

Computer Security is widely being used and is very important for aviation. Aviation industry is especially important because it usually involves the lives of human beings, cost included for expensive equipment,infrastructure,cargo,shipment etc.Sabotage,espionage,terrorist threats, mechanical malfunctioning, human error are just few of the possibilities when there is no computer security. Power failure, blown fuses, lightning all cause the computer system to disable as it is dependent on electricity.

Security Threats can occur at
Network level
Data level